Winslow allderdice



v (No Model.) W. ALLDERDIOE.

ROLLS FOR REDUCING AND STRAIGHTBNING METAL RODS;

I NO. 427.288.

Patented May 6, 1890.

UNITED STATES PATENT OFFICE.

WINSLOW ALLDERDIGE, OF WARREN, OHIO, ASSIGNOR 0F ONE-HALF TO JUNIUSDANA, OF SAME PLACE.

ROLLS FOR REDUClNG AND STRAIGHTENING METAL RODS.

SPECIFICATION forming part of Letters Patent No. 427,288, dated May 6,1890.

Application filed October 26, 1887. Renewed March 12, 1890. Qerial No.343,580. (No model.)

To all whom it may concern:

Be it known that I, WnvsLoW ALLDERDICE, a citizen of the United States,residing at \Varren, in the county of Trumbull and State of Ohio, haveinvented a new and useful Improvement in Feed-Rolls, of which thefollowing is a specification.

My invention relates to feed-rolls adapted for machines for rounding,straightening, and finishing rods 01- tubes; and it consists of one ormore rolls formed with annular grooves, or what are known as collaredrolls, the perimeters of the collars or parts between the annulargrooves being screw-threaded.

In the drawings forming a part of this specification, Figure 1 is a sideelevation of two of the feed-rolls and a rear working-roll, and Fig. 2is an end elevation of the feedrolls and working-rolls.

Heretofore feed-rolls for the purpose above mentioned have been formedwith annular grooves and set at an angle with eachother and with theworking rolls, and therefore only a small part of the feed-rolls were incontact with the rod to be operated on. In myinvention,by reason of thescrew-threads on the feed-rolls, they may be set parallel with eachother and with the working-rolls, thereby simplifying theconnecting-gearing and bringing the whole length of the feed-rolls incontact with the rod to be operated on. The rolls areto be set in asuitable frame and operated by gearing in the ordinary and well-knownway.

The feed-rolls a a and working-rolls b b are arranged parallel with eachother and at a suitable distance apart to be in contact with the rod ortube (2 to be fed between them by the feed-rolls. For convenience theparts of the rolls between their annular grooves are herein termedcollars. The perimeter-s of feed-rools a, a are screw-threaded, andpreferably set or arranged so that the faces of screw-threads s on eachof them shall be 0pposite to those on the other, as shown in thedrawings, and both of the feed-rolls are to be rotated in the samedirection.

The feed-rolls may be conveniently made by first screw-threading themand then grooving them annularly. By rotating them their screw-threadsfeed the rod to be operated on by the working-rolls b b.

I claim as my invention One or more feed-rolls formed with annulargrooves and having their collars or parts between the grooves screwthreaded and adapted for use in combination with working-rolls,substantially as and for the purpose described.

WVINSLOW ALLDERDIOE.

Witnesses:

TRUMAN D. OVIATT, GEO. H. JONES.

